Cellular Respiration Chapter 9. What is a calorie? The amount of energy need to raise the...
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Transcript of Cellular Respiration Chapter 9. What is a calorie? The amount of energy need to raise the...
![Page 1: Cellular Respiration Chapter 9. What is a calorie? The amount of energy need to raise the temperature of 1 g of H 2 O 1 o C. * The Calorie used on food.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfc21a28abf838ca4a1a/html5/thumbnails/1.jpg)
Cellular RespirationCellular Respiration
Chapter 9Chapter 9
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What is a calorie?What is a calorie?
The amount of energy need to raise the The amount of energy need to raise the temperature of 1 g of Htemperature of 1 g of H22O 1O 1ooC.C.
* The Calorie used on food labels is actually a kilocalorie.
* 1 g of C6H12O6 contains 3811 calories.
![Page 3: Cellular Respiration Chapter 9. What is a calorie? The amount of energy need to raise the temperature of 1 g of H 2 O 1 o C. * The Calorie used on food.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfc21a28abf838ca4a1a/html5/thumbnails/3.jpg)
How do organisms release the energy How do organisms release the energy found in Cfound in C66HH1212OO66??A 3 step process called cellular respiration. These are the steps:
1. GlycolysisGlycolysis – occurs in the cytoplasm
2. Krebs CycleKrebs Cycle – occurs in the matrix of the mitochondria
3. Electron Transport chainElectron Transport chain – occurs on the inner membrane of the mitochondria
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The overview of cellular respiration:The overview of cellular respiration:
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What is the difference What is the difference between aerobic & between aerobic & anaerobic reactions?anaerobic reactions?
Aerobic = uses O2. The Krebs Cycle & ETC are aerobic
Anaerobic = doesn’t use O2. Glycolysis is anaerobic.
How do cellular respiration & How do cellular respiration & photosynthesis compare?photosynthesis compare?
![Page 6: Cellular Respiration Chapter 9. What is a calorie? The amount of energy need to raise the temperature of 1 g of H 2 O 1 o C. * The Calorie used on food.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfc21a28abf838ca4a1a/html5/thumbnails/6.jpg)
Aerobic RespirationAerobic RespirationStep 1: GlycolysisStep 1: Glycolysis
A. Occurs in the cytoplasmB. Produces 2 ATP2 ATPC. Produces 2 NADH2 NADH
- hi energy e- that will be used by the electron transport chain (ETC)
D. Produces 2 pyruvic acid molecules2 pyruvic acid molecules- these will be used by the Krebs cycle
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Aerobic RespirationAerobic RespirationStep 2: Krebs CycleStep 2: Krebs Cycle
A. Occurs in the matrix of the mitochondria
B. A.K.A the Citric Acid CycleCitric Acid Cycle because it is temporarily made during this process
C. Produces 1 ATP1 ATPD. Produces 4 NADH4 NADH
- hi energy e- that will go to the ETCE. Produces 1 FADH1 FADH22
- hi energy e- that will go to the ETCF. Releases COCO22 as a waste productwaste product
* The main job of the Krebs Cycle is to make * The main job of the Krebs Cycle is to make more hi energy e- for the ETC.more hi energy e- for the ETC.
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Aerobic RespirationAerobic RespirationStep 3: Electron Transport ChainStep 3: Electron Transport Chain
A. Occurs on the inner membrane of the mitochondria.
B. ElectronsElectrons delivered by NADH & FADH2 travel down a chain of chain of
proteinsproteins. The electrons are then used to make make H H22OO. OO22 is used at this step.
C. The movement of electrons pumps HThe movement of electrons pumps H++ across the inner membrane. across the inner membrane.D. The H+ then pass through an enzyme called ATP SynthaseATP Synthase. 24 ATP are 24 ATP are
made made here. here.
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Aerobic RespirationAerobic Respiration
For each molecule For each molecule of of CC66HH1212OO66, aerobic , aerobic
(cellular) respiration (cellular) respiration produces produces 36 ATP36 ATP..
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Anaerobic RespirationAnaerobic Respiration
What is anaerobic respiration?What is anaerobic respiration?The process of releasing the energy in C6H12O6 without the presence of O2.
It is a two step process:1.1. GlycolysisGlycolysis – makes 2 ATP2 ATP & 2 NADH2 NADH2.2. FermentationFermentation – turns NADH back into
NAD+* Anaerobic respiration only makes 2 ATP 2 ATP
per glucose moleculeper glucose molecule.
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Anaerobic RespirationAnaerobic Respiration
Step 1: GlycolysisStep 1: Glycolysis
A. Produces 2 ATP2 ATP
B. Produces 2 NADH2 NADH
C. Produces 2 pyruvic acid 2 pyruvic acid moleculesmolecules
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Anaerobic RespirationAnaerobic Respiration
Step 2: FermentationStep 2: Fermentation
A. Converts the pyruvic acid into a different molecule in order to
regenerate NAD+regenerate NAD+.
B. In Alcoholic FermentationAlcoholic Fermentation, pyruvic acid is turned into alcoholalcohol & & COCO22.
C. In Lactic Acid FermentationLactic Acid Fermentation, pyruvic acid is turned into lactic lactic acid acid.
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Anaerobic RespirationAnaerobic Respiration